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CalcRiver

Grade Calculator

Calculate your current class grade and determine what score you need on the final exam to get an A. Supports weighted percentages and point-based grading.

Understanding Grading Systems

Most schools use one of two systems: Weighted or Points.

Weighted Grades

In a weighted system, categories (like Homework, Quizzes, Final Exam) are worth a specific percentage of your total grade.
Example: Homework is 20%, Tests are 50%, Final is 30%.
It doesn't matter how many points an individual assignment is worth, only the average of that category and its weight.

Points System

In a points system, every assignment has a point value. Your grade is simply the total points you earned divided by the total points possible.
Example: You earned 450 points out of 500 total points possible = 90%.
A 100-point test is worth exactly twice as much as a 50-point homework assignment.

Calculating What You Need on the Final

To determine what score you need on your final exam ($x$), the formula depends on your system:

Weighted Formula:

Target = (CurrentGrade × (1 - FinalWeight)) + (x × FinalWeight)

Points Formula:

Target% = (TotalPointsEarned + x) / (TotalPointsPossible + FinalMaxPoints)

? Frequently Asked Questions

If your weights sum to less than 100% (e.g., before the final exam), the calculator determines your current grade based on the weight accumulated so far. If weights exceed 100%, the math may be skewed, so ensure your syllabus adds up correctly.

Yes! In a points system, just enter points earned higher than max points (e.g., 105/100). In a weighted system, enter a grade above 100%.

Yes, the calculator automatically converts your percentage score into a standard letter grade (A, B, C, D, F) based on a typical 10-point scale.